I'm not 100% sure, but isn't the TRTO responsible to provide the base check for you?
No - unless that is the deal you agreed with them. Many TRTO's will get you through to your Line Skills Test, after that it's up to you or your employer to sort out the base training. And as MP points out, you only have 6 months from LST to complete the base training.
Aside from the current situation, just doing a TR without base training organised is crazy.
IT2Pilot - just having a TR on this type doesn't mean anything at the moment without vast experience - there are NO jobs out there on this type in the UK - I know quite a few decent, experienced chaps who cannot secure anything - not even a summer contract.