Algoa Bay boat trips

I would like to complain about Algoa Bay Boat trips, we called earlier in the week for an excursion for whale watching and since the weather was not good the person of Algoa bay boat trips said she'll call when the weather is nicer like on Friday, we called her twice to ask for Friday and she said definitely. But on friday when we tried to contact her she wouldn't pick up. She has'nt called even though she promised to.