Broken exhaust big boy refuse to replace

The ****test service ever. Refuses to replace a scooter exhaust after the second one also broke. U pay a **** load of money cash but when stuff break over and over all sorts if excused pops up not to replace. Now im without transport but big boy head office already enjoyed my money and i am stranded. They want to act clever on email and over the phone but dont experience the frustration the client has ti deal with broken parts over and over on a daily basis. At this point i just had enough of **** SERVICE. They happy to take your money but unhappy to sort the **** out they selling to customers.