I am sorry to trouble you but would you please let him (her) know your contacts such as address and phone number?
I think you will receive a message from this seller.
Thank you very much in advance and I really appreciate your help.
I am sorry for bothering you but could you please let me know your contact information such as address and telephone number?
I guess its seller will contact you soon. Again, I am sorry for making you confused. Hope for your understanding.
I am sorry to put you in any trouble but would you tell me the personal information such as your address and the phone number, please?
Perhaps the seller will contact you.
I appreciate your cooperation.