I recently purchased one of your air hockey sets (Model # AH344) for our family. Unfortunately,1 after viewing the components that came with the product, I discovered that some of the parts were missing. Four2 of them, in fact, were missing3. Also, the instructions that came with the set are incomplete4. Both of these situations have caused the set to remain unassembled and unacceptable5 for use by my family, which6 is really7 disappointed.

I am writing to request both8 replacements for the missing9 parts and8 a copy of the full set10 of assembly directions for the model I purchased. If reasonable arrangements are not made within ten business days, I will return the set to the store I purchased it from and expect a full refund. To assist you in processing my request, I am including a copy11 of my sales receipt and a list of the missing parts, each of which is12 provided with your part number.

I have purchased other items manufactured by your company in the past, and have always been impressed with the quality and selection your13 company has made available to its14 customers. I sincerely hope this is a one-time15 incident, and that16 any future purchases I make will live up to the standards17 my family has18 come to expect from your company.

1. The word “Unfortunatly” should be spelled “Unfortunately.”
2. At the beginning of a sentence, any number that would ordinarily be represented in numerals is spelled out, regardless of any inconsistency this may create.
3. The sentence fragment “4 of them, in fact.” contains no finite verb. Rewrite it either by adding a verb (were) or by connecting the fragment to the previous sentence.
4. The word “in-complete” should be spelled “incomplete.”
5. This comma splice, in which a comma with no conjunction joined a string of two clauses, has been rewritten with the coordinating conjunction “and.”
6. The term “family” as used here is a noun referring to a collection of persons or things regarded as a unit, rather than referring to the members of the group as individuals. It therefore calls for the relative pronoun “which” rather than “who.”
7. The term “real” used as an adverb (meaning “very”) is considered informal and more suitable to speech than to writing. In business and other formal correspondence, choose the adverb “really.”
8. The correlative conjunction pair “both…and” links the sentence elements “replacements for the missing parts” and “a copy of…;” separating the elements with a comma is incorrect.
9. The word “mising” should be spelled “missing.”
10. The words “full set” do not function as a modifier and should not be hyphenated.
11. Do not omit articles (a, an, the); they are often omitted when speaking or writing, but they are a very necessary element of the English language. The term “copy” is singular and should be preceded by the article “a,” as “a copy.”
12. The noun phrase “each of which” is singular and should use the singular verb “is.”
13. The word “you” should be spelled “your.”
14. The term “it’s” is a contraction of “it is” or “it has,” while the term “its” is a possessive pronoun; “its” is the correct usage here.
15. The word “onetime” means “former;” the expression “one-time” means “occurring once” and is the correct choice here.
16. This is a fused compound sentence that requires proper punctuation or a conjunction, or (in this case) both, between the two independent clauses.
17. The noun “standards” is a countable (plural), common noun used here to signify “criteria” and, as such, either uses no article or the definite article “the.” Either form is correct.
18. Again, the term “family” as used here is a noun referring to a collection of persons or things regarded as a unit, rather than referring to the members of the group as individuals, and therefore calls for the singular verb “has” rather than the plural verb “have.”