Spoiler: Avoid at all costs!
The worst account rental service I’ve ever dealt with. They overcharge while advertising low fees and then pressure you to spend more. If you set your ad campaigns to a low daily budget, they’ll stealthily increase the bids at night, leaving you no choice in the morning but to deposit more money into this scammy service. Their so-called "credit line" accounts are unverified and completely unsuitable for running ads in the EU. The report sheet never get updated on time, which gives them room for lying on it. Most of the fan pages and ad accounts they provide appear to be compromised Facebook profiles stolen via malware. You can tell these aren’t legitimate agency accounts because they mysteriously disappear in the middle of the day or share access with strangers who sabotage your ads by deleting them.
I worked with them for two months, and I’ve had enough. This partnership only benefits Zumy, not the client.