you dont get more amps.
You have a fuse on the main fuse board, it may be rated at 32A or 20 A 0r 16A, if you pull more power than the main fuse is rated at it will trip or blow depending on the type of fuse.
If you were to uprate the fuse, then there would be a problem with the cable, the fuse ultimately protects the cable, most ring mains would commonly use a cable capable of supplying a set capacity say no more than 32A, if you were to stick in a 50A fuse the cable would get hot and may catch fire.
Uprating the fuse is never recomended.
Using a bigger cable would be the safe way to pull more power, but that owuld not be practicable without rewiring the comumity center.
If you are unsure I advise you to bring an electrician along to look at the electrical instalation and advise you on your best options.
Be safe.