UNAUTH PENETRATION OF TCA B AIRSPACE BY SMA PLT ON A VFR FLT PLAN.

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AT APPROX XO15 LCL TIME; CESSNA DEPARTED LGB WITH A SQUAWK CODE TO FLY INTO CLASS B AIRSPACE. I WAS THEN ASKED TO RESUME OWN NAV AND PROCEEDED TO DO SO. SOME SECONDS LATER; I MADE A REQUEST TO CLB UP TO 12500 FT AND DEP SAID TO CLB OUT AT OUR DISCRETION AND SQUAWK VFR. I ASKED FOR ANOTHER FREQ TO PICK UP ANOTHER CLASS B CLRNC AND WAS GIVEN A FREQ FOR COAST APCH. UPON CONTACTING COAST APCH AND REQUESTING A CLRNC INTO CLASS B AIRSPACE TO CHINO AND THEN VFR FLT FOLLOWING SKY HARBOR LAS VEGAS; I WAS REQUESTED TO CONTACT LAX APCH. I DID SO AND MADE THE SAME REQUEST. LAX APCH TRIED TO HAND ME BACK TO COASTAL. (NO ONE WANTED TO WORK MY REQUEST.) I STATED 'COASTAL HANDED ME TO LAX' AND THEY SAID STAND BY. SOME MINS LATER THEY SAID FLY HDG 070 AND GAVE ME A SQUAWK CODE AND INFORMED ME THAT I HAD PENETRATED CLASS B AIRSPACE. THIS NEVER SHOULD HAVE HAPPENED BECAUSE OF THE 1ST REQUEST MADE WITH CLRNC DELIVERY AND THE SQUAWK CODE THAT FOLLOWED. I FEEL AS THOUGH I WAS DISMISSED AS AN INCONVENIENCE BY THE LCL CTLING AGENCY. IN MY OPINION; THIS NEVER WOULD HAVE TAKEN PLACE IF MY ORIGINAL REQUEST HAD BEEN FORWARDED TO THE NEXT CTLR INSTEAD OF BEING DUMPED. ALSO; DUE TO THE LACK OF VISIBILITY IN SUCH A CONGESTED AIRSPACE; ALL OF MY DUTIES WERE TAXED TO MAX CAPACITY AND THE CONFUSION ON THE RADIO LED TO MY GETTING OFF COURSE AND PENETRATING CLASS B AIRSPACE.