Unspendable bitcoins on blockchain
non spendable bitcoins


That usually means either


a watch-only address in a cryptocurrency wallet
an account with a custodial service with some withdrawal restrictions.


In either case, you are not the owner of those Bitcoins so far as the Bitcoin network is concerned. The watch-only address is a favourite trick of scammers/conmen. They like to set up accounts and wallets that look like they contain money but which, in a non-obvious way, don't give the victim any control over money - that helps them to trick people. The conmen then ask the victim for a series of invented special "release" fees or extra deposits.


  Someone helped me trade


Usually a sign of a scam. Unless its someone you met in person in real life and have known well for years.


  a trading account, IQ options ... an account manager that traded for me 


Very often the sign of a scam

I'm pretty certain your money was taken by a scammer and not used in the way they claimed. 


  blockchain account 


The only recourse in this situation is to report this theft to Blockchain.com, to the police and if the "helper" is identifiable and located in the same country, explore pursuing it through the courts. It is extremely unlikely the money can be recovered and attempts to recover the money through the legal system are likely to cost more money.


  I have my backup phrases 


I would use that to recreate a clean wallet on a clean freshly installed PC (not one your helper has ever known about) and see if it actually contains anything. Most likely it is an empty wallet. Probably the watch-only addresses in your wallet were added separately and any money shown there is not under the control of your recovery phrase.