Overlapping for 13 days in employment

Hi I'm vijay laxmi from Hyderabad and my concerns or issue is about my overlapping between company A and company B for 13 days overlapping. Actually I have asked and requested company A to relieve me in April month itself but no body helped me in this regards at the same time I Have signed bond and signed offer with company B on April 19 2022 but at the time I'm not aware of this consequences of overlap. But now I'm facing overlap issue with all companies when I'm joining due to this i contacted company A for help to update my relieving date and as well as epfo portal date of exit change but they are not helping me. I agree I made mistake but i have tried multiple times to get relive early in April 15 itself but manger was rude he never helped me in this matter now i have contacted company A and i have said them that I will return those days salary but even though I'm getting help or support please me in this matter in legal how to proceed with this it's my early stage of career i need your help