I have had a very difficult time with this company...

I have had a very difficult time with this company in the past in the store with issues on trying to change a service and they made it impossible and gave me an attitude (except the worker who came to turn on our wifi - he was great!). Then today I went in to switch my router and the guy took the whole system from me and handed me a box. I asked VERY clearly if everything I needed was in there - every cord, every device, instructions, EVERYTHING. Guy went back and got me instructions (which why they aren't included in the first place beats me). Got home and the first step is to plug in the coax cable... Which is still connected to my old router that he took from me at the store. I LITERALLY COULD NOT HAVE BEEN MORE CLEAR UGH.