Can you merge a conversion Roth IRA with existing Roth IRA?

No, because the taxation on disbursement will be different.

Maybe contact the bank you created the account with. Why you would try to ask this question here is silly.

Conversion works by authorizing the account to release money to the bank that will accept the money. This ensures that the money will transfer without incident or penalty.

Converting to an IRA Roth Conversion is based on the premise that taxes in retirement will go up, but what if taxes in retirement do not go up? Than an IRA roth conversions would not be beneficial,...

All you need is your bank details, social security number, employer details and some money for your initial payment into the scheme. Forms are available to download at official ROTH IRA sites. You...