Changed Billing Cycle and statement not generated for current cycle. I've a Amazon Pay ICICI Card.

I previously had a billing date of 27th of each month and I do not want my statement generated on the 27th so I changed it to 25th.

As per I read, the current billing cycle should generate on 28 September only and the next billing cycle will generate a statement on 25th Oct.

But what happened was, Bill is not generated till now(30Sep). If we change the billing cycle for the new card, does the statement generate for 2 cycles at once on the 25th itself?

I even e-mailed the customer support and they aren't giving me a clear answer. I'm worried I'll have to pay for 2 Cycles together on 25th October which is too much for me and will mess up my budget.