Work / Job Offer in Gliwice at 4000zł – is it enough money? [17]

Cześć! I'm a newly-qualified teacher of English as a second language, with a passion for all things Polish. I've been offered a job at a school in Gliwice, and on the face of it, it looks like a great opportunity.

My question concerns the salary. The guaranteed monthly minimum income is 3000zł, and could go up to 4000zł with overtime. I was in the Małopolska region on holiday back in August, so I already know that, relative to here in the UK, money goes a lot further in Poland. The school provides accommodation at 600zł/month and I figure I'll lose around the same in tax. So, in your opinions, is 1800zł per month a reasonable amount of disposable income in this part of Silesia? I'd like to be able to have at least a few hundred surplus each month, to save up enough over the 10 month contract period to pay back the £1100 I borrowed to do my CELTA English teaching qualification. Any helpful input would be greatly appreciated – I need to make a decision soon! Dziękuje za pomoc :)