Sorry to hear of your troubles Beverly. But I don’t think (sadly) that it is uncommon.
I feel I was ripped off by my ‘Trusted’ mechanic (he had done all the work on my previous cars with good results/cost for 6yrs)...
Although he gave me a 6 month warrantee with a second hand older car (but which still costs me over Euros 4,000)- I had to use it almost immediately as the head gasket suddenly went within weeks of aquiring the vehcile - it didn’t cover all the costs. As time went on I have since discovered it was a crash rebuid, the airbag had been tampered with and it didn’t pass its last ITV etc, etc.
All in all I am furious with him (as you can guess I don’t give him any more business/tell everyone to avoid him). I did try to negotiate for him to pay for labour and myself the necessary parts as things went wrong week after week, but the first time I tried he more or less told me to get stuffed.
I ‘could’ perhaps have gone back to him and demanded the libro de reclamaciones, but I feel he would have got his lawyer to say he had given me a property warantee.
Sadly it seems there are as many crooks down here as there are people.
If you get any luck with a reclamacion (the libro I mentioned), you have the right to call the police if he refuses to present it.
What usually happens is they will try to sort the matter out with you if you threaten this.
Once you have gone past this you can report him to the local consumer office and they will arbitrate. If he still refuses to give at all - then you usually have to hire a lawyer etc.
If he had any sense he would cough up and at least give you a partial refund.
Any police station (I usually go to the Guardia), should do you a denuncia for a ‘crime’ (ie the vehcile is/was unsafe at time of sale). Many of the police stations have interpretuers - or take your own. I have always found them helpful (in the denuncia part at least- not the follow up = as I think they just expect us to go get lawyers).
It makes me so mad when this sort of blatant fraud/robbery happens!
ps - There is a department of the local motor vehicle dept that inspects garages. I am sure he wouldn’t want them on his doorstep!