Never again!!!

I cancelled my contract last month around the 20th May as my contract period had ended and was told my last debit will be the 1st June 2026, Now I get an email stating my last debit is 30th June 2026, No one is explaining to me why do I have to pay another last debit and why the debit amount is higher than my usual debit. Seems like MTN is a **** just trying to milk money out of people. I will never make the mistake of taking another contract with MTN.