If you are using a VPN or Proxy, please disable them or contact support team. Please provide debug info from textarea below: SmsYM4u6tNWtTNe4AZB2vyNLxCivqJquBdy4HtFmoqCW7x9SG9FTbWc1UCmhex3oQJcJDXa62wGzChpTxqphxAaJVin3M4bTxfQZpdtF2vkhtRubP6ZJ58oNDMx29GeD8sUG7eAVmcYnfpGShQFMYV5ajNxxx5t
You can also try to pass an automatic check but with no guarantee.