As a foreigner moving here and signing up for contracts for basic services I was shocked how every contract basically came guaranteed with a price increase within the next fiscal year or so. Internet, £31 until April of the next year where it would increase to 35. Many phone contracts were the same to the point where I specifically signed up for one that promised no price increases for at least a year. I now prefer to prepay for 2 year contracts up front so that I know I'm settled up for the following 2 years. Utilities fluctuate but they seem to follow a similar pattern.

Back home, price increases happen over time as inflation happens, but it was never baked into the contract that your price would increase automatically. If you signed up for a 1-2 year contract at a certain price, that's what you would pay until the end of the term. After you renewed you would renegotiate and either get the same price or usually a small increase which was the case of not getting signup bonuses, and over longer term start to see price increases due to economic changes.