Lock out my Samsung account

[Adam1608]

My Samsung account is set to and old phone number is it possible to get a new sim sent out to this old number because there is no way to get past the 2 step verification even though I have all my passwords to do this? 

[caesarome]

Any replacement sim will replace the active sim you have on your account. If your issue is with a Samsung account then have you spoken to Samsung to see if they can help ?

[Adam1608]

I've tried contacting Samsung with this issue but there is little.they can do to help I've searched for answers online and I need various information on the phone I do not have anymore. I have the Imei number but there are others I don't.

[daveNOS]

@Adam1608 Try the following, it may work but I can't guarantee it,

1 Go to Settings
Settings app icon
2 Tap on Accounts and backup
Accounts and backup selected in Settings
3 Tap on Manage accounts
Manage accounts selected in Accounts and backup
4 Select Samsung Account
Samsung Account selected in Manage accounts
5 Tap on My profile
My profile selected in Samsung account settings
6 Tap on Security and privacy
Security and privacy selected in Samsung account profile
7 Tap on Two-step verification, then enter your password
Two-step verification selected in security and privacy settings of Samsung Account
8 Under Verification methods, tap Text message
Text message selected under Verification methods in Two-step verification menu
9 Tap Add
Add selected in Text messages menu of two-step verification options
10 Enter your phone number, then tap Send code
Send code selected in Add phone number menu
10 Enter the code in the space provided, then tap Verify

To do this from a PC.

PC

1 Go to the Samsung Account website

2 Click Sign in and enter your login details

Sign in selected on home page of Samsung Account website

3 Click on Security then enter your password

Security selected on My Account section of Samsung Account website

4 Under Password and security click Two-step verification

Two-step verification selected in Security section of Samsung Account website

5 Click Text message

6 Click Edit personal information

7 Click Add phone number

8 Enter your phone number and click Send code

9 Once you receive the code, click Verify

[twilight+princess]

If 2fa is enabled on the account then Samsung won't help as it is a security feature which is not meant to be bypassed. If it was easy then anyone could supply personal details (gained from a security breach) to pretend they're you & access the account.
Did you save the backup codes when you set up 2fa? 
Did you set up an authenticator app to generate the log in code?

Have you checked the information here?
https://www.samsung.com/us/support/answer/ANS00090882/