Hey TacticalCha0s,
Sorry to hear that rewards for the unlocked achievement weren't granted. Spending time, effort, and money only to not receive the rewards you've earned is understandably a frustrating experience. We'd love to help, but I'm afraid we don't have the necessary tools or records to do so here on the forums. I understand you've already done so, but you'll need to reach out to live support for continued assistance with the missing coins.
If it's been over 24 hours since you completed S1 and you've already restarted your system and game to no avail, please use the Contact Us button at the bottom of this page to contact live support. The same page includes some information that support may ask from you to have handy, along with troubleshooting steps for missing content.
Please feel free to use this web form if you're receiving pushback from the NextStep bot. Thanks!