Hi and Welcome. My Name is ***** ***** I look forward to assisting you today with your question.
First we can reset your iPhone and see if it works or not. Press and hold down the Power button and Home button at the same time until it shows the Apple logo. When you see the Apple logo, release the buttons and let it boot. Can you see the regular keyboard now ?
If not, do you see the a globe button at bottom left, left to space bar ? Tap on it and does it change the keyboard ?
If it still not working, then we have to activate or restore the iPhone from your computer. I will send you instructions.
Let me know how the steps above went out.