Looking at flights from Malaga to a combination of Leeds, East Midlands and Manchester, I can see 8 flights on 30-March. Given 2 months of advance warning, it should be possible to organise some alternate flight home
Ticket revenue between Doncaster and Malaga on 30 March is probably low, and Wizz don't really care. To them it's business, and occasionally businesses just have to get rid of their unprofitable customers
If your flight really is cancelled, you'll get an email some time later this month... and certainly at least 14 days before your date of travel