First of all, we can't (nor can anyone else) determine what the problem is as due to Privacy laws that protect you, only you & the Social Security Administration (SSA) have access to that information.
As a result you need to contact the SSA yourself in order to inquire about anything to do with your SSA account.
One thing I have seen in the past is that if you owed money to the IRS, once that lien has been satisfied, if you also owed money to a State Tax Department, that could be the problem.
The other issue that sometimes arises is that if you are covered under Medicare & had an increase in your taxable
income in a prior year due to a capital gain or something unusual like that, then your Medicare premium would increase the following year to a figure similar to the figure you are quoting.
These are just possibilities in case you know that you may fall into either of those situations.
However, as I said you need to contact the SSA.
You can do so online at SSA.gov which requires you to set up a "My Social Security" account and then you can find out all sorts of things about your Social Security benefits. However, in your situation you would probably have to make a specific inquiry and wait for an email response.
The other way is to call them, which sometimes is frustrating due to a time consuming "holding" on the phone.
Ironically, if you are in Canada, you may not experience that as there are separate phone listings depending upon where you are located in Canada. Use this link that will give you the number for your are in Canada:
Let me know if I can assist you further.
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