Cannot see my coins after delete of and re-setup extension

Hi noob here . Last night bought some coins and put into Sui Wallet. Was working fine. This morning Iam clicking Sui extension on Chrome but keep opening the Browser with prompt for setup. Tried many times then deleted extension and re-added. Proceeded with setup {Add Existing Accnt) with my 12 word written on paper phrase. It asked me to setup new password which i did. The Sui Wallet extension window opens now but does not show any purchases , activity or balance. I verified the Portfolio number on the extension which is different to the address I used on my Crypto exchange when sending Sui to my Wallet. Please help me . I tried adding the Keys (under "Add Account screen on Sui Extension) obtained from my Exchange but it gives a message as ’ nvalid Private Key, please use a Bech32 encoded 33-byte string. Learn more: @github

I have re-tried as i could open the Chrome extension after setup this morning. I tried to do ’ add account" by using “Import Paraphrase” feature. When I entered my original 12 words followed by my password for that account from yesterday ( which was used again today to setup extension again after deletion. Upon entering my password, It said that “memonic… something” already exists !!
phew …losing hair now…Sui team pls help…