A cute knack

I recently switched over to a new mobile service provider with better features. The old provider had sent a cute card with very cute hand written messages.. Some of which are
"Don't forget us. It's been great, and if you ever fancy coming back, our arms are open."
"It won't be the same without you, but we wish you the best of luck if its really time to move on.. If you're not sure, ring us on ****** and we'll talk it thru. No pressure!"
"Was it something we said?If we went wrong somewhere and disappointed you, tell us what happened and we'll do our best to make it up to you."
If its a money thing, we can work something out. We could add a juicy credit to your bill or switch to a lower tariff. The lowest tariff is only ** per month."