My son's 16th birthday nightmare

Bought a used bike through them although I had the opportunity to buy directly from previous owner. Finance application took two weeks, lost documents four times?? After several assurances that the bike was checked by the workshop it turned out to be a lemon. Reported it immediately, took more than a week to respond and pick the bike up. Took more than a week and personal visit to get the bike through the workshop. On their advice sale was cancelled. Settled the finance immediately myself, still paid an installment and now struggling for two weeks to get my money out of them. Miguel never available, finance lady not keeping her promises. What was meant to be my son's 16th birthday gift turned out to be a nightmare, and still not over. Lost my reservation on another bike while waiting for the money.