Disgusting attitude from your FTO.
Is this the standard treatment they give to students?
overloaded instructors, low aircraft availability
This is a problem with the organisation not the instructors or you. So what gives them the right to blame you for their failings.
I'm too old to make it a sensible option in going for the fATPL, given the current market conditions, but my daughter is very enthusiastic about doing it - and very able.
I would not like her to attend such an organisation so would you mind naming - in a pm if needs be - so that we can make sure she grants them a very wide berth.
Follow the advice of Send Clowns and do all you can to continue. Do Not give up
Good Luck and keep smiling.
Ron.