Bad service

I went to Vodacom at Parow Centre in Cape town on Friday to sign up for fibre and application was finalized but to my surprise consultant came back to tell me it’s out of stock I must come back Monday. Monday came and when I got there it’s still not delivered and they’re not sure when it will be delivered. Why sell something that’s not available? No one is giving me answers except telling me to wait they will call once it’s available. Ridiculous!