I have a 9 week old baby and want to know if he can ride in the Baby Trend Expedition jogging stroller that I bought.

We have a Baby trend Expedition LX 9152 and the front wheel wobbles when unlock and makes the seat shake a little. We were told by customer service that the bolt should be tighten but it still wobbles. We were told also that the wheel should be locked when you jog which makes no sense to me because if one is running and the front wheel is lock it’s not safe to raise the front wheel and turn. Maybe i am missing something in all of this? please enlighten me.