ThingSpeakWrite() limit same in free version as Home version, should that be?

I am trying to share some data which is acquired real time so that I can add to a web page. So I got this working:

This is acquired from my battery tester and has about 27026 records accumulated in a table with 4 columns.

The Home license for ThingSpeak was setup an hour ago, but made no difference in the size of jj which allows the thingSpeakWrite operation to succeed. Do I need to wait a day? The Account counter doesn't show I have used any significant amount of daliy messaging space. I have been changing the datetime("2019-MM-DD") so that there won't be duplicate entries, and repeatedly cleared the channel storage.

Thanks for any suggestion where I am hitting a limit that isn't greater in Home license than Free license on ThingSpeak.mathworks.com, Best, Mark @W4CHL

% Send data to Grinspector test channel via thingSpeakWrite()
% 09-09 Student version limited, set jj = Max_records ~500, total size is 26
% 09-10 Home version also limited, but to same jj = ~700 ! Should be larger!?
tspchid = 861393;   jj = 700;
tStamps = datetime("2019-08-30") + seconds(gt_data(1:jj,1));
gt_timetable = timetable(tStamps, gt_data(1:jj,2), gt_data(1:jj,3), gt_data(1:jj,4));
thingSpeakWrite(tspchid,gt_timetable,'WriteKey','write-key');