Driver Door Issue & Gearbox Malfunction Message

[FloydKing12345]

We have a Audi A4 Estate (2015). It has only done 39000 miles. For the past 2 months the vehicle has displayed a 'Gearbox Malfunction' message on the dashboard. It appears, beeps, then disappears. It has done this several times every month for the past 2 months.

In the last week the drivers door has developed a fault. It cannot be opened from the inside but can be opened from the outside?

My questions are:- has anybody else experienced these faults before. and can I expect any help from Audi?

Any advice much appreciated, Thanks Dave