Are these sentences grammatically correct?

It is with great displeasure to inform you that I haven't yet received my credit card, which had been expired 3 months back, despite repeat request and personal visit to your branch for new card.

Your office said that you had already despatched the card through courier service provider Aramax. On contacting them, they have said that they had already returned back the card to the bank because of unavailable of customer.

Unfortunately, I haven't received any calls from Aramex or Bank regarding the delivery of my credit card. There might be a error in the contact details with your department otherwise I would have received call / intimation from the courier service.

You had already charged annual fee and additional fee for replacement card but to vain I haven't yet received a new card.

Kindly look into this matter and arrange a new card as soon as possible.