Gear damage Volvo V40

Hello dear people, I have unfortunately again a new problem on my Volvo. After a clutch damage (about 170 Tsd.) (the workshop told me it is the printout bearing and has made the clutch new), is now two months later the gearbox broken. When driving there was suddenly no more drive, so the gears could be inserted quite normally just the car didn’t drive anymore. Now the workshop told me that there is a hole in the gearbox and the car would have lost a lot of oil. Can this happen now due to the previous clutch damage? Or was it already broken and was overlooked when the clutch was replaced? And my last question, the workshop meant that a used VW could be built in, which would not be so expensive. Is this really just so?? Would you like to hear a few opinions, I just don’t know if I should do that. Thank you very much!