All round useless

Tried to change a flight online, wouldn't allow me and said I needed to call the call centre. Tried call centre on Monday 28 August, 10 mins on the line and didn't get to an agent. Moaned over Facebook, and was told I need to call the call centre with #flyssa_care as their message signoff - oh, the irony. Tried call center again today, 31 August. On the line for 20 minutes this time and no answer. Good life advice: use another airline.