Tata Steel — Order cancellation related.

I've tried to book TATA TMT on 23.01.2021 at about 01:30 AM. I made the payment on-line for that order through my American Express credit card. The said order has not been confirmed till 25.01.2021! I've escalated the issue to the customer care of both TATA Steel and credit card authority regarding that issue. Then suddenly I got an e-mail on 26.01.2021 confirming that order having order No. 51798. As the order no. had not been generated and confirmed instantly, I bought the product by cash payments through M/s. Jagannath Bank & Sons', an authorised dealer of TATA Steel products. As I no longer require the items which I've booked through online on 23.01.2021, I want to cancel that order bearing No. 51798 though I'm not able to do so through the website as the "Cancel this Order" button has been inactivated.
In view of the above, I would like to request you to cancel that order immediately as I'm not able to do so due unavailability of customer service on 26.01.2021. My total payment which I've made for that order on 23.01.2021 i.e. Rs 70, 377 may please be refunded back to its original source without deducting any amount. Inordinate delay in confirming the order compelled me to buy the product directly from the Dealer. I was not responsible for the technical glitches for which I didn't get any order confirmation message in due time. I also want to make it clear that if any amount is deducted in the form of 'Processing Charge', I Will have to take the matter to the appropriate legal forum.
Please cancel the order no 51798 immediately under intimation to me.
Yours Sincerely
Pabitra Mukherjee