Blinkit — Charged more than mrp

I've been using blinkit past 4 yrs consistently
And this is second time happening to me in last 3 months since grofers has changed to blinkit that I've been charged more than mrp...
Price for corn charged was rs 89 while the mrp was 80 ...
This is seriously unacceptable.. it isn't matter of just 9rs for one single Individual but Every one is being charged more thn mrp .. its just i had noticed it ...that too twice... I let that go previously bcuz the executive said it was a technical glitch and the prices were not updated...
And this time too same thing was said... But they were same even after 24 hrs ...so obviously it wasn't any technical glitch.. this is fraud... Instead of discounts nd offers that blinkit claims... charging more than mrp is in itself is not right

This is literally unacceptable and breach of trust