When applying for my contract on 3rd Jan I was told by the agent that the specific device I want was in stock & available and was expecting delivery sometime this week

When applying for my contract on 3rd Jan I was told by the agent that the specific device I want was in stock & available and was expecting delivery sometime this week. Today I phoned your customer care to follow up on my delivery and I was told the iPhone 16 Pro Max is out of stock and that delivery from MTN is anticipated next week. I find it ********* for someone to claim they had stock whilst they didn’t , it is also an inconvenience cause I could have gone to istore on that day to get that phone.