https://techcrunch.com/2018/02/15/coinbase-blames-visa-for-glitch-that-overcharged-users/

While Coinbase has had its fair share of technical issues the last few months, it seems the latest one may not be their fault.

Earlier today reports started coming in across social media and reddit that Coinbase users were seeing strange charges on their credit and debit cards. Many of these were users being double-charged for a past transaction, although there were also some (unconfirmed) reports of people being hit with as many as 50 duplicate charges.