State Bank Of India [SBI] — Home loan EMI deduction

Hello,
I have taken home loan from SBI in 2020 and opted for the part payment EMI on the loan disbursement instead of full EMI.
Now from January 2022, they have started deducting full EMI along with full EMI.
SBI is deducting two EMIs in single month.
I’m well aware that full EMI should start within 18 months or so and I’m okay with that. But they should have at least inform me that your full EMI will start.
Also they should stop deducting that part payment interest over the loan amount now. It’s 50% more amount they are deducting from me.