Oppressive, persistent and rude ...!

Oppressive, persistent and rude ...!
They send offers that perhaps include only them and if you ask to explain themselves by giving an example with what you are already paying, they tell you that they cannot do it ... let me explain better, if I go from one telephone operator to another I do it because objectively I understand , making a normal comparison with the rates, which one is cheaper than the other ... but if he calls you a2a and says: you are our customer and we make you an advantageous offer, fixed rate for 2 years ... yes, oh well, but who tells me that it is an advantageous offer ??? If the price of gas decreases, I always pay the same amount, not convenient, and I get lost !!! Then there is the infallible rule that says: "nobody gives you anything ... especially multinationals !!!"
Imagine if they want to save me at their expense ... !!! But do me the pleasure!