I get this, but all in all you make more than your basic pay..
For instance your basic pay us ยฃ1800, you do a couple overtime shifts and you're taxed for them but you get paid ยฃ2900..
More money is more money, Take yours and let the government take theirs.
Doing overtime in the UK is like working extra hours for HMRC. The last experience made me choose my rest over my desire for more money. You'll see deductions, eyes will blur