I also filed a support ticket about the quest not giving my Beginner the mount reward. A GM refunded me the 10,000 mesos NIGHT spent on the Excellent Harness. Fair enough. Thanks, GM!
So now Maple Tour coins are going to join all the other coins eating up our inventory slots.
We've got:
Crusader coins
PULSAR coins
FriendStory coins
Evolution coins
Monster Park coins
Lion King coins
green Root Abyss coins
blue Root Abyss coins
Shadow Merchant coins
Magnus coins
Yu Garden coins
Commerci coins
green Gollux coins
blue Gollux coins
Kritias coins (+Anti-Magic Stones to get them)
silver Masteria coins
gold Masteria coins
AbsoLab coins (+2 kinds of cores to get them)
Stigma coins (+2 kinds of stones to get them)
Phantasma coins (+2 kinds of droplets to get them)
Arachno coins (+2 more kinds of droplets to get them)
Without even getting started on event coins. (Thank goodness Legion Coins no longer take up space too!) (Also not counting non-coin exchange items like Ursus and PQ tokens.)
Coin purses aren't big enough for all these in-game coins. There has got to be a better way.