Our agreed KLM flight ticket price took off, disappeared and cost us £118

We were told it was all down to ‘dynamic pricing’ but what we had signed up to was alteredI booked a one-way flight for my family from Amsterdam to Bristol with KLM Cityhopper. The agreed fares were £71.30 each, including four seat reservations (£37.60). I paid for a hold bag (£25.70), bringing the total to £310.90.A few days later, I checked my bank statement and noticed I had been charged £428.90, a difference of £118. The “My Trip” s