Written salary is lower than the verbal offer

Hello,

I am not sure if this is the write page to ask.

So two weeks ago I was offered a job verbally ove the phone and accepted the offer.

On Friday I received paperwork with the salary written on the document. And is it’s $156 less (a year) than what was communicated over the phone.

When I asked about it, HR said what’s on the document is the offer.

Is it wrong for me to want to negotiate that $150 a year?

I am scheduled to start tomorrow.

That’s money that can cover medical insurance.

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