Ok so I've just came off the phone and wow I feel so much better. The lovely lady was so kind telling me not to worry, my current claim will just end , didnt require any other information from me and will receive a letter with what i owe. She said she doesnt want to add any stress and they would never do that, they want to support, i will have to pay back but only what I can afford. She advised to apply for universal credit as their office is now starting close.
I want to thank you all so much for your advice and now I can try and get my shit together