[Blue Dog]

This is how it works.
If you have an engine with a piston sticking out the side of the block, the problem can be identified very quickly.
The repair however will be rather expensive.

In your case there is a problem, or a number of problems relating to a communication issue in your vehicle.
Unlike the quick diagnosis in the above scenario, diagnosing the problem could take an extended amount of time, which could translate into a significant expense.
The actual cost of the repair may be relatively cheap.

So whether or not it's worth pursuing will depend on whether you can fix it yourself, or at least diagnose it, or pay someone else to do it.

Whether you decide to do it, or get someone else to do it, the first step is the same.
Connect to the DDL & see if there are any fault codes logged.
You can see on the receipt you attached, the technician completed this process.

Once you have any logged codes recorded, a diagnostic strategy can be developed.