BT home broadband users. Due to recent price hikes you're able to leave BT without penalty. My offer was due to expire soon. Going from £29 to £31.50 then increasing to £49 when my deal ended on a 50mb connection.
Called them and and told them Vodafones deal, 18 month contract, 76mb speed, no line rental for £31 upfront cost of £49.
BT matched the speed and price so getting 76mb for £33 no upfront cost.
Pays to call and potentially cancel.