It would appear that as a contractor, they can put you off line for as long as they like, leaving you with nothing to show for your 100K or so. That is if they do this before 1500hrs. Before 1500hrs and achieving your ATPL, you have nowhere to go. You are restricted to EZY's AOC. you can't go flying for anyone else. Post 1500 hrs you are the same as any other ATPL holder. Contracting under these restrictions???? after forking our that money???? Yep you sure may have an A320 rating. But without an ATPL to your name, if they chop you, you be stuffed little Juan.
Happy contracting