Sobha Developers — pos payment not received by vendor

Address:

Bangalore, Karnataka

I made a pos transaction on 3 nov 2018 in bangalore towards payment of rs 35000 to vendor sobha ltd. The pos generated a slip (Attached) and i also received an sms from my bank cbi. Card was debit card rupay issued by central bank of indioa

Now the vendor claims that they have not received the payment till date. They said there would be a reversal transaction. It is now over 1 month and there is no reversal transaction.

Kindly advise if vendor has received payment. If not why is there no reversal transaction