Will I be able to sue my company?

I was let go because of the effects of the covid in our industry. 1- Severance package and a relocation package has been offered as per my contract 2- I asked the severance to be extended for X time. It was not accepted but was offered a greater relocation package after negotiations. 3- I asked the relocation package to be paid in cash as lump sum payment which was agreed. 4- Even though the contract states the exact amount for both severance package and lump sum money, it only mentions tax deductions for the severance package and NOT for the lump sum payment. I and my employer agreed on an exact amount for this lump sum money. No one told me about the amount being gross and it does not state in the contract. 5- After signing the contract mutually, the company sent me the lump sum money which was way less than the amount mentioned in the contract which does not confirm gross or net. 6- I told them they are not complying with the contract. Can I sue them?