On XX/XX/XXXX We sold a Ford F250 truck to an individual. We did not remove the license plate from the vehicle at the time of sale. The new owner apparently did not register the vehicle in his name and acquire a new license plate. He acquired XXXX parking violations ( XX/XX/XXXX and XXXX ) which totaled {$20.00} each plus penalties, for a total of {$160.00}. He failed to pay the tickets and we were sent the citations, because the license plates still showed us to be the owner. When the City of XXXX XXXX sent us the citation I sent them a letter and copy of bill of sale and title transfer. They continued to send notices and I would each time send copies. They referred the matter to XXXX XXXX XXXX and they began harassing calls and letters. I sent them the copies as well. XXXX XXXX has now passed on the debt to Transworld Systems who has continued the harassment. I copied them on the same information on XX/XX/XXXX. In response, On XX/XX/XXXX I received their " validation, '' which is the same info of the date, time, ticket #, truck plate. I want all correspondence to cease regarding this debt which is clearly not ours. In addition to the collection agencies we also had a revocation of motor vehicle registration privileges placed on us by the XXXX DPS, which required more documentation and time to clear up.