HDFC Bank — surrendering hdfc credit card

Sir,

I had sent the diagonally cut said credit card by india speed post on 30.5.2018 (Wednesday) with
Consignemnt no. Et[protected]in.
You have received it on 1.6.18 (Friday), as per india posts.
2.6.18 saturday is a working day, on which you might have started the closing process of the said credit card.
3.6.18 sunday is a holiday.
4.6.18 monday is a working day.
As per your email, you required 31.5.18, 1.6.18 and 2.6.18 or on 4.6.18

Why you was unable to close till 5.6.18
Want to rob more money by delaying?
For me the said credit card is closed by you on 22.5.18 itself.
Donot try to make phone call and donot tell lies like "my voice is not clear", etc., hereafter to make more delay.