We have 3 mobiles on a Spark account, and were receiving the $10/month bundle-up bonus. Then, we moved from absolute crap Spark VDSL to Spark wireless broadband -- and after setting up the tech did a "by the way, you'll lose your bundle-up bonus because you are changing plans and it no longer applies to your mobile plans", which eliminates a good chunk of the marginal savings on the new broadband. Only mobile plans $39 and above are eligible.
OK, I can wear the $10/month, but it is the principle of the thing -- not being told beforehand, not finding anything on Spark which said, if you change plans, all bets are off. I should have been told.
My guess is that this will happen also if you change to fibre.
So, I now have no good reason to stay with Spark mobile, do I? Right.