Synapse Support
https://synapsesupport.io/knowledgebaseQ: How long does it take a key to arrive in my email? A: Please allow up to 3 days for Bitcoin and gift card purchases. Contact support or go here if you have not received your key within this time frame. Q: Can I run Synapse X from the WinRAR/7zip archive viewer? A: Due to unicode character issues, Synapse X needs to be extracted from its archive file before use.