Vodacom unhelpful

I have had a Vodacom contract for 10 Years and have the last few years received a very average service. I am the Franchisee Owner of 4 Business in the South and thus need to stay connected. 2years ago I got he Huqwai Pro 20, which worked out a fantastic business phone. I was phoned a while ago and asked whether I wanted to be upgraded. We discussed a number of requirements that I have. ie Must be able to download emails , apps and basically run my business on the phone. The lady said that the Huwai Pro 40 could do everything I currently did just better. I had a with me. Alas this phone gets deliverecI go on holiday not use the new phone. Get home and start uploading the NEw Pro 40, This phone cannot do my email nor anything I required. Google/ On line Banking/ APPS and I cannot Download My App for my car insurance. I have gone to few Vodacom Shops and have been informed that this phone is not compatible with anything currently on all other phones. I got an expensive phone and all I can do is Get smss/ phone and take great photos. I need my email and other apps and My device dooes nos support this. How can you sell me a phon lke that if I asked you whether I would be able to do what I currently do. Vodacom is very unhelpfull in assisting me and I am going to go to the Consumer ombudsman as I cannot work on the entry level phone. Not one person informed me that this is a phone that wont work in my current South African environment. I will place adverts everywhere... Help me