Can I cancel a rust proof and undercoating agreement one working day after signing?
Depends on what your contract with the rustproofing company shows. Also depends if they’ve already DONE the rustproofing. If it is already done, then I’ll say NO.
You need to explain a WHOLE lot more about your situation, plus, keep in mind, we are NOT CarLawyerTalk, just CarTalk
The only place for the answer is who sold you the rustproofing. We don’t even know where you are or who you did the contract with.
You may find the answer by reading the contract.