Hello Puu,
Welcome to the community!
Sorry to hear your plan cost increased unexpectedly. Generally, Fido informs customers of account related information (ie plan cost increases) on your bill. They would normally notify customers a couple of months prior to the actual increase.
I understand people like the notion that prices would never increase. Unfortunately, however, the cost of everything increases. However, as you note, the cost of your plan had not changed in years. At some point, those added costs would eventually increase the operating costs for companies. I don't think it's feasible for any business to not occasionally adjust their service/plan prices in response to rising operating costs.
That said, have you had a chance to view the details of that bill? You should be able to do so via your My Account --> My Bill. From your Bill Overview, you should be able to Save and/or Print a PDF copy of your bill. Alternatively, you should also be able to view the details online. Is it possible there are additional charges on your bill?
You should note the forums are community-driven and not intended as a venue for customer services. We do not have access to customers' accounts. If you would like to discuss your matter, you would need to contact customer service for assistance. In addition, they can also be contacted via Live Chat, Facebook, or Twitter. Those methods can be accessed via the contact page posted above.
Hope this helps 😀
Cheers
