Been saving 20p and 50p's all year my bank will only accept 10 bags per visit, going to have to make several trips, don't know if this is the norm with all banks these days.
Never seen one in a bank, local Nat West closed down last month. My bank says the limit is because of queues that formed when people were paying in lots of bags of coins, answer open another till there's always plenty of staff walking around with bits of paper in their hands looking busy.