It does clearly state that 50gb is your limit and exessive use (which yours is) will command a charge.

Its not as if youve just creeped over cause give them their due they do let you away with it. Your miles over


The solution is a new provider with unlimited downloads but i think u will find 99% of those are 'accpetable terms' and doubt they wil let you download 150Gb without charging.

Sky broadband look good