Step 1: When a mechanic is available, she or he will confirm your order. Timing depends entirely on currently available mechanics.
Step 2: Mechanic will show up at the time you agreed to meet. The time for repair depends on the mechanic but it shouldn't take longer than 30 minutes for a tube and a tire. Cycle Savers can not guarantee for the exact duration.
Only to unlock and lock the bicycle. For locking it, you can actually arrange that the mechanics should throw your key into your mailbox or drop it at the receptionist at your workplace. However, the arrangement for locking the bike is between you and the mechanic, CS does not take any responsibility for any inconveniences (e.g. stolen bicycle because someone took the key from the receptionist). We suggest to lock your bicycle to a streetlamp without locking the flat tire (i.e. just lock your frame to a post), then the mechanic will be able to do the job without your presence.