I have some problems with API Access. All time i send more than 10 requests per second i got HttpError() {\n "status" : "503",\n "error_message" : "This request exceeds the limit allowed by your current plan. To increase your request limit, see: http://www.seomoz.org/api/pricing"\n}.
My Plan is Low Volume and continually got this 503 error. How to solve this?
