Unable to create label with Sendle

Is anyone having any problems with buying Sendle labels within their Shopify Dashboard?

I have made no changes in my backend and this morning I am getting the error:

There was a problem buying shipping labels
Review order details and try again.
Sendle:
The amount originally quoted for this label did not match the recalculated price at the time of purchase.

Anyone had this and worked out a fix?

Since this morning only

Did you get my message?