Buying kitaabs online

Q:

A) I sent to emails to an islamicbooks website email saying

i) "Id like to order the following books to ** ******** Street ******** *** *** (Postcode). How much will it be with postage?"

ii) "I would like to order the following (these were names of kitabs) 1 ***** ***** 2 ***** ***** 3 **** ******* to this address ** ****************, *****, *******, *** ***, Can you send me the price of each one with total items postage? Jazakallahu khairaa"

B) Unfortunately without telling the price the books were shipped to my house.

C) After receiving the kitabs I have written some stuff in one kitaab.

D) Then (after writing) the price of the kitaabs and postage was told and the money was payed. I am happy with the books and price. Is it wajib for this bay to be cancelled?

Stray thoughts

Q: I was reading salaah and just as I completed a thought occurred to me how people could claim to be God. I wondered how it was so easy for them to have uttered "I am God" while wondering I fear I might have subconsciously uttered those words due to lack of paying attention to my thoughts. I fear I might have committed a form of shirk unintentionally. I am panicking because I don't want to lose my Imaan. Please advise.

The spouses covering themselves during intercourse

Q: Regarding intimacy between husband and wife, over time I have read in a few books and Q & A's to the effect that, permissibility being said, one should should still remember the hadith that '...Hayaa is the branch of Imaan...' Also I have read that taqwa demands that one should not be totally undressed and that at least one garment be kept on by each spouse. I would like to know what is Mufti saheb's view regarding this. Please advise as to what is better for one to do. Furthermore, I once read on UswatulMuslimah to the effect that the manner of intimacy has an impact on a child that is born of that union. 'Goodness begets goodness' was mentioned. If garments for the purpose of intimacy are worn, will this not have an impact on the piety, hayaa etc. of a child that could be born? Please provide a detail answer as this is bothering me for very long. Please make dua for the piety of my family and I.