Product: Vehicle loan or lease

The issue is the vehicle was funded with documentation that did NOT come from me but submitted to the Financial Institution, AmeriCredit Financial, per my conversation with XXXX, Supervisor of the Funding Dept., On XX/XX/2020. I was told that they had received XXXX Cable  Bill in my name that I do NOT have.I questioned them funding with this documentation from the dealership when they knew from me that, I had no bills in my name. I was told that they received this from the dealership on my behalf. 
I was in personal transition at the time of the purchase of this vehicle coming out of bankruptcy & dealing with medical complications. My address hasnt been updated on my license from me moving to family members home. I have NO bills at the residence in my name. During this time I was in fact trying to get all my affairs in order & ended up back on medical twice. The funding Dept notified me BEFORE the vehicle was funded stating a deadline for having documentation in to them in order for the deal to go through. Due to me having medical complications at the time, I wasnt able to produce the documentation meeting the deadline & said if I had to return I would once on me feet. I was prepared to return the vehicle once cleared from XXXX XXXX per a voice message left on my voicemail by the Sales Manager XXXX XXXX. He stated that he needed proof of residency by the next day or they needed the vehicle back. I also have medical documentation to prove of my XXXX during this time if need be to handle this case. 
I was told by the dealership that they would be able to hold it off while I was on XXXX  & if they needed documentation from me they would call & let me know. They stated they would work something out to hold off on the deal & potentially work a better deal possibly with more money down, seeing I wasnt satisfied with the vehicle from the initial day. Instead they pushed the deal through anyway without my knowledge. They produced false documentation to get this deal funded. I have never received a welcome letter, phone call or coupon payment book. I was told by the Finance Manager, XXXX, to expect a call from the Funding Department concerning the vehicle. He said they would ask me some questions regarding the agreement & I must answer correctly or it could ruin the deal. I never received that Welcome Call of questioning. However, I began to receive calls from an unknown Texas number with vague information on my voicemail not addressing me. I called the number thinking they have the wrong contact information for someone theyre trying to reach attempting to get my phone number off of their list. I found out that this number was GM Financial whom merged with AmerCredit & they had an account for me now past due from a vehicle that was funded with false documentation in my name, submitted by XXXX XXXX Dealership.I just recently received a statement invoice from GM Financial after making them aware of this issue as well looking for resolve as the Funding Department told me I had to deal with their customer service. They stated they would look into it & contact me back as well. I suppose sending me a statement for the first time was them contacting me back, still no acknowledgment of the issue for resolution. 
I DO NOT want the deal/vehicle. I want this off of my credit & they can have their falsified deal/vehicle back. I am longer interested in a better deal with them behind this. They have lied & violated any trust being established to do business with them. I have reached out to them for resolve to no avail. I am now concerned of this affecting my credit of which Im trying to re-establish.