Canada Post and community Mail boxes - Lock fix

Last year we were moved from door-to-door mail to using a community mailbox.  It wouldn't have been all that bad, but, the locks were NOT made for Canadian winters.  Any time we got precipitation that melted the water would get into the lock and then when it got colder it would freeze.  The lock would freeze so hard even lock deicer would not work the first time.  It would take three to four applications of the fluid and a lot of swearing before I could get into the lock.  It was so bad here in Ottawa it was difficult to find lock deicer as the stores would sell out in several minutes.  I went through several bottles and at times I would go a week before I could get access to my mail.  Canada Post finally acknowledged the issue and in the next several weeks they will be replacing the locks that "is less likely to freeze".  Still don't believe them until we get winter weather, rain and freezing rain and I can get into the mailbox.