Router remains undelivered

I ordered an LTE router to replace my damaged ADSL. The first attempt, the router arrived with the incorrect address, after I changed the address 7 months ago. The router was returned to them. It took a week to re-assign the order for the process to start again. It now has been 2 weeks, I have contacted the call center several times. Up until now, nothing has arrived. Nearly 1 month without internet. It is utterly disappointing, very bad service...