Hmmm

You've caused your dilemma, mate.

The contract you signed, requires you to pay an additional $1560 to the vendor no later than 9 February '24.

Delaying, moaning, groaning, etc won't help, only your disbursement of $1560 before COB on 9 February will eliminate further ramifications.

Your self imposed predicament isn't anything similar to harassment. In fact, I'm sure your vendor feels as if you're stiffing them for the last 332 days. The longer you delay, you'll only increase your potential pain.

Yours is nothing more than a debt problem.

Debt problems have three known cures.

One cure is bankruptcy.

Another cure is to pay the debt in full.

The third cure is your demise, as in death.

Good luck, mate.