To everyone having issues opening their web wallet: you must have a minimum balance of 0.1 BOS to make it a valid account. If the account doesn't have at least 0.1 BOS, the account information will not be registered into the blockchain and you won't be able to log into your account with your secret seed. So the "problems" you are encountering are actually working as intended. Your account will work once the team has sent your BOScoins to your account, as it will contain more than 0.01 BOS at that point.
Thanks for this information, it is clear now for me.Sent email and telegram details, hoping to get the account+wallet verified soon.