Challenging a credit agreement is a rather complicated procedure. You should approach it wisely, otherwise, even if you have a winning position, you have every chance of incurring additional financial losses.
First of all, you first need to decide on the purpose of the trial, it can be the invalidation of the contract, the reduction of payments accrued by the bank, or the cancellation of fines. An examination of the contract and the terms of its signing, verification of the bank's compliance with the terms of the agreement, as well as a recalculation of accrued payments and fines are also required. Based on the collected data, it will be possible to determine the purpose of the lawsuit, its economic feasibility and the chances of successful completion of the case.
Secondly, it is logical not to bring the case to court and try to conclude a settlement agreement. Not all bankers are such terrible and greedy villains who dream of driving the client into a debt pit and taking away all his property. Therefore, if you have compelling circumstances to ask for a postponement or reduction of payments, as well as a sufficient evidence base for the court, it will be faster and more profitable for the bank to conclude a new mutually beneficial contract with you.
Thirdly, during the court process, no one releases the borrower from his obligation to repay the loan. If the contract was not terminated, but you still stopped paying for it, then during the trial you will receive new fines, and the bank will accuse you of dishonesty. Therefore, it is mandatory to demand the suspension of the credit agreement for the duration of the trial when filing a lawsuit. If the bank sued you, then you need to file a counterclaim with this claim.