Late Payment & Bill Prices

I'm tight on money right now and will need to pay my bill due the 16th, the following week on the 27th. I'm fine with paying the late fee, I just need to know if there will be any potential interruptions? 

Also I would like to speak to someone regarding the costs of my current plan. It's gotten to be too much in price that I'm struggling to pay it and I'm interested in doing a yearly contract to bring the prices down, otherwise I may just have to look for internet and cable options elsewhere. If someone from support could help that would be wonderful!