TVS Scooty pep+ - Bad Quality of Parts and service

I gave my scooty pep+ to service center just as the left brake cable was broken. I asked them for servicing also. in the afternoon i received a call saying.. the brake liners are jam and we need to cut the housing to remove it and it will charge 5000 rs.total with servicing etc.. . I said use some chemicals and try rather than cutting as it may damage something.. they said its regular process.. so i had no choice said yes.. 2 days later they called and said when we opened we found the crankcase is broken and it will cost another 6000 rs.... i said house that is possible.. my vehicle was in good condition.. when i fought they accepted it is broken by them...while cutting the housing for brake liner.. i said you take responsibility of this and pay for it why should i pay.... then they fought with me... and then i said i don't want my vehicle back.. do whatever you can.. then he said he will try and now i have a vehicle with welded crankcase... this is most pathetic service i have ever see with tvs... Please don't bye tvs vehicles...