Call 1-888 8Metro8.
The fastest way to get a live rep is to wait for it to say blah blah for spanish, and they say Activation Support, then once it goes into that menu, say Retry, and it will quickly transfer you do a rep. I do it this way because if you don't and tell the automated system you want to talk to agent, it will say " I understand you want to talk to a agent, but I can probably help you faster here " no matter how many times you press 0 or say customer service, that damn bot will say the same thing. So first say activation support, then retry, and it will transfer you right away.
Once you have agent, have him/her double check your plan. Sometimes when activating a Huawei Ascend, it puts you on the regular 50 plan, not the smartphone plan which " could " be the reason why you can't do anything data related on your Ascend.
As far as the wifi, when your on your home screen, hit menu, then settings, then the first option should say Wireless & Networks, enable the wifi, and then click wifi settings, and connect to your home network.