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Then, the process of Early Termination of Contract is very easy! See video below. Video also describes which statuses the contract go through, up to archiving of the contract.
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https://www.youtube.com/watch?v=EB2YYIHeVss&list=PLGrwYyCxmp1RjVv_gk7TzUZpOnhoOUDot&index=17
Note:
The contract can be early terminated only from the last unposted instalment that you see in the payments calendar.
Follow up:
How to change financing period