Property we are buying is still listed for sale through other agents

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A few weeks ago we had an offer accepted on a property and the agent we were buying with took it off the market.
The house was up for sale with 3 other agents at the same time.

A few days later a higher offer came in through one of the other agents and we increased our offer to secure the property once again.

The property is still listed with these other agents on Rightmove and not marked as sold.

Should we be worried and if so do we bring this up with these other agents or the agent we are buying through?

Did you make it a condition of your offer that the property was taken off the market?

Yes we did

We did originally even when the 1st offer was accepted

Flag it up to the agent you are buying through. They will get the other agents to take it off the market ... it is in their interests to do so and they have been really been slack in not doing so already!